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InterlockedAddAcquire64 function

Performs an atomic addition operation on the specified LONGLONG values. The operation is performed with acquire memory ordering semantics.

Syntax

LONGLONG __cdecl InterlockedAddAcquire64(
  _Inout_ LONGLONG volatile *Addend,
  _In_    LONGLONG          Value
);

Parameters

  • Addend [in, out]
    A pointer to the first operand. This value will be replaced with the result of the operation.

  • Value [in]
    The second operand.

Return value

The function returns the result of the operation.

Remarks

The interlocked functions provide a simple mechanism for synchronizing access to a variable that is shared by multiple threads. This function is atomic with respect to calls to other interlocked functions.

This function is implemented using a compiler intrinsic where possible. For more information, see the WinBase.h header file and _InterlockedAdd64_acq.

Note  This function is supported on Windows RT-based systems.

 

Requirements

Header

Winnt.h (include Windows.h)

See also

Interlocked Variable Access

InterlockedAdd

InterlockedAddAcquire

InterlockedAddRelease

InterlockedAddNoFence

InterlockedAdd64

InterlockedAddRelease64

InterlockedAddNoFence64

InterlockedExchangeAdd

Synchronization Functions